Comparison

slydial vs 55 M

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

slydial

This app allows you to send personalized voice messages directly to someone's voicemail, bypassing the need for a live conversation. It's designed for quick, efficient communication when you don't have time to talk or wish to avoid interrupting. Features include group messaging and hands-free Siri integration.

Highlights
  • Direct to voicemail messaging
  • Group voicemail sending
  • Hands-free Siri integration
  • Personalized voice messages
  • Time-saving communication
Features
Read full description

All new slydial, our best app yet! We’ve completely redesigned slydial from the ground up with a fresh look, smoother performance, and brand-new features. It’s the easiest, smartest way to connect straight to voicemail. What is slydial? Slydial lets you skip the conversation and go directly to someone’s voicemail. Perfect when you don’t have time to talk, or don’t want to. With our Group Messaging feature, you can even send one prerecorded voicemail to up to 10 contacts at once. And now, it’s hands-free: just say “Hey Siri... Call [contact name] using slydial!” When do you slydial? Think of slydial as your secret communication shortcut. Use it to: -Save time when you’re busy. -Respect someone’s time by not interrupting. -Get your point across when a text won’t cut it. -Avoid the stress of an awkward conversation. How does it work? 1. Open the slydial app. 2. Sign in or create a free account. 3. Choose a contact (or enter their number). 4. Slydial connects you directly to voicemail, simple as that. Upgrade to slydial Premium to skip in-call ads, or get Group slydial to send  a single voicemail to multiple contacts and track your results. *Good to know: Slydial works from U.S. phones to U.S. phones only.

About

55 M

Features
Read full description

Discover the amenities, experiences, and people that make up 55M. Attend, save, exercise, eat, learn, connect - all on the go. Love where you work!

Screenshots

slydial4 screens
55 M4 screens

Verdict

The call

The clearest difference is in-app purchases: 55 M at none against slydial's 3. 55 M also leads on update cadence (every 2 weeks vs every 4 months) and iOS requirement (15.6 vs 17). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. slydial sells 3 in-app purchases, starting at $2.99 per month. 55 M asks for nothing beyond the download.

UpkeepUpdate frequency

slydial ships an update every 4 months, 55 M every 2 weeks. The most recent releases landed on September 24, 2026 and September 17, 2026 respectively.

Scorecard3 real differences · 7 level
slydial versus 55 M: the parameters behind the verdict, then further details
Parameterslydial55 M
PriceFreeFree
Rating4.3 (6 ratings) — better—
Positive reviews29.4% of reviews—
Number of ratings6 — better—
Update frequencyEvery 4 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPod — better
Requires iOS1715.6 — better
Further details — not scored
Size4 MB168 MB
Age rating4+4+
DeveloperMobileSphere, Ltd55M DC Owner, LLC

Bugs and requests

slydial

Reported bugs

21 issues
  • App no longer works for many users
  • Login/registration errors
  • Numbers are marked as invalid
  • Calls ring instead of going to voicemail
  • App crashes or freezes
Show 16 more
  • App is slow and unresponsive
  • Incorrect numbers are dialed
  • App shows caller number to recipient
  • Login issues after account deletion
  • Error screen at registration
  • App does not see new numbers added to phone book
  • Call disconnects when typing number
  • App freezes after every use, requires reinstall
  • Shows "unknown caller" and doesn't go to voicemail
  • Paid subscription still has ads and issues
  • Phone number is out of service
  • App doesn't work with new iPhones
  • App doesn't work with iPhone 4S
  • Adds extra numbers to dialing string
  • One ring before going to voicemail
  • Recipient sees "Slydial" in recent calls

Requested features

4 requests
  • Extension option for dialing
  • Ability to see called numbers history
  • Dark mode option
  • Option to record and send messages directly from iPhone

55 M

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

slydial

Subscriptions2
  • Premium Monthly Plan$2.991 Month
  • Premium Annual Plan$29.991 Year
One-time1
  • Premium Group slydial$9.99
None

55 M

No in-app purchases

Questions

Is slydial free?
slydial is free to download, with in-app purchases available.
Is 55 M free?
55 M is free to download, with no in-app purchases.
Do slydial or 55 M have ads?
Neither slydial nor 55 M shows ads.
Which is updated more often, slydial or 55 M?
slydial ships an update every 4 months, and 55 M every 2 weeks. Most recently, slydial was updated on September 24, 2026 and 55 M on September 17, 2026.

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